The National Gardening Association has an excellent guide to plant pests. For each bug they have a detailed photo, their size, what region of the country they are found in, what plants they can be found on, where on the plant they can be found and finally, how to control them. All in under 200 words or less! Now that I found it this site will be the first place I go to if I want to identify an insect I believe is harming my plants. Check it out.
The National Gardening Association's Pest Control Library: Bug Mugs
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